Support flags in IXCLRDataTask.CreateStackWalk #112366

Closed
#131901
Closed
Support flags in IXCLRDataTask.CreateStackWalk#112366
#131901
Assignees
rcj1
Labels
area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
Milestone
11.0.0

Description

@max-charlamb
max-charlamb
opened on Feb 10, 2025

Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.

Flags:

enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};

I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.

This filters funclets but seems somewhat inconsistent.

Example

In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.

Full Stackwalk

Highlighted lines are removed in the current DAC behavior.

OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

Managed Only DAC Behavior

OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

Managed Only Naive cDAC Implementation

Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.

OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

What is going on

Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
ExceptionTracker::FindParentStackFrameForStackWalk
ExceptionTracker::IsUnwoundToTargetParentFrame
ExceptionTracker::IsInStackRegionUnwoundByCurrentException

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    Skip to content
    Support flags in IXCLRDataTask.CreateStackWalk #112366
    Closed
    #131901
    Closed
    Support flags in IXCLRDataTask.CreateStackWalk#112366
    #131901
    Assignees
    rcj1
    Labels
    area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
    Milestone
    11.0.0
    Description
    @max-charlamb
    max-charlamb
    opened on Feb 10, 2025
    Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
    Flags:
    enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
    I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
    This filters funclets but seems somewhat inconsistent.
    Example
    In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
    Full Stackwalk
    Highlighted lines are removed in the current DAC behavior.
    OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

    Managed Only DAC Behavior
    OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

    Managed Only Naive cDAC Implementation
    Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
    OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

    What is going on
    Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
    ExceptionTracker::FindParentStackFrameForStackWalk
    ExceptionTracker::IsUnwoundToTargetParentFrame
    ExceptionTracker::IsInStackRegionUnwoundByCurrentException
    Metadata
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    area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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, 'i');
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      Skip to content
      Support flags in IXCLRDataTask.CreateStackWalk #112366
      Closed
      #131901
      Closed
      Support flags in IXCLRDataTask.CreateStackWalk#112366
      #131901
      Assignees
      rcj1
      Labels
      area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
      Milestone
      11.0.0
      Description
      @max-charlamb
      max-charlamb
      opened on Feb 10, 2025
      Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
      Flags:
      enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
      I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
      This filters funclets but seems somewhat inconsistent.
      Example
      In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
      Full Stackwalk
      Highlighted lines are removed in the current DAC behavior.
      OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

      Managed Only DAC Behavior
      OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

      Managed Only Naive cDAC Implementation
      Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
      OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

      What is going on
      Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
      ExceptionTracker::FindParentStackFrameForStackWalk
      ExceptionTracker::IsUnwoundToTargetParentFrame
      ExceptionTracker::IsInStackRegionUnwoundByCurrentException
      Metadata
      Metadata
      Assignees
      Labels
      area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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      No projects
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        No branches or pull requests
        Issue actions
        
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

        Skip to content
        Support flags in IXCLRDataTask.CreateStackWalk #112366
        Closed
        #131901
        Closed
        Support flags in IXCLRDataTask.CreateStackWalk#112366
        #131901
        Assignees
        rcj1
        Labels
        area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
        Milestone
        11.0.0
        Description
        @max-charlamb
        max-charlamb
        opened on Feb 10, 2025
        Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
        Flags:
        enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
        I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
        This filters funclets but seems somewhat inconsistent.
        Example
        In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
        Full Stackwalk
        Highlighted lines are removed in the current DAC behavior.
        OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

        Managed Only DAC Behavior
        OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

        Managed Only Naive cDAC Implementation
        Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
        OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

        What is going on
        Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
        ExceptionTracker::FindParentStackFrameForStackWalk
        ExceptionTracker::IsUnwoundToTargetParentFrame
        ExceptionTracker::IsInStackRegionUnwoundByCurrentException
        Metadata
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        area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

          Skip to content
          Support flags in IXCLRDataTask.CreateStackWalk #112366
          Closed
          #131901
          Closed
          Support flags in IXCLRDataTask.CreateStackWalk#112366
          #131901
          Assignees
          rcj1
          Labels
          area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
          Milestone
          11.0.0
          Description
          @max-charlamb
          max-charlamb
          opened on Feb 10, 2025
          Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
          Flags:
          enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
          I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
          This filters funclets but seems somewhat inconsistent.
          Example
          In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
          Full Stackwalk
          Highlighted lines are removed in the current DAC behavior.
          OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

          Managed Only DAC Behavior
          OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

          Managed Only Naive cDAC Implementation
          Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
          OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

          What is going on
          Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
          ExceptionTracker::FindParentStackFrameForStackWalk
          ExceptionTracker::IsUnwoundToTargetParentFrame
          ExceptionTracker::IsInStackRegionUnwoundByCurrentException
          Metadata
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          area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

            Skip to content
            Support flags in IXCLRDataTask.CreateStackWalk #112366
            Closed
            #131901
            Closed
            Support flags in IXCLRDataTask.CreateStackWalk#112366
            #131901
            Assignees
            rcj1
            Labels
            area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
            Milestone
            11.0.0
            Description
            @max-charlamb
            max-charlamb
            opened on Feb 10, 2025
            Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
            Flags:
            enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
            I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
            This filters funclets but seems somewhat inconsistent.
            Example
            In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
            Full Stackwalk
            Highlighted lines are removed in the current DAC behavior.
            OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

            Managed Only DAC Behavior
            OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

            Managed Only Naive cDAC Implementation
            Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
            OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

            What is going on
            Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
            ExceptionTracker::FindParentStackFrameForStackWalk
            ExceptionTracker::IsUnwoundToTargetParentFrame
            ExceptionTracker::IsInStackRegionUnwoundByCurrentException
            Metadata
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            area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
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(function(){
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var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Support flags in IXCLRDataTask.CreateStackWalk #112366
              Closed
              #131901
              Closed
              Support flags in IXCLRDataTask.CreateStackWalk#112366
              #131901
              Assignees
              rcj1
              Labels
              area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
              Milestone
              11.0.0
              Description
              @max-charlamb
              max-charlamb
              opened on Feb 10, 2025
              Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
              Flags:
              enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
              I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
              This filters funclets but seems somewhat inconsistent.
              Example
              In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
              Full Stackwalk
              Highlighted lines are removed in the current DAC behavior.
              OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

              Managed Only DAC Behavior
              OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

              Managed Only Naive cDAC Implementation
              Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
              OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

              What is going on
              Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
              ExceptionTracker::FindParentStackFrameForStackWalk
              ExceptionTracker::IsUnwoundToTargetParentFrame
              ExceptionTracker::IsInStackRegionUnwoundByCurrentException
              Metadata
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              Labels
              area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                Skip to content
                Support flags in IXCLRDataTask.CreateStackWalk #112366
                Closed
                #131901
                Closed
                Support flags in IXCLRDataTask.CreateStackWalk#112366
                #131901
                Assignees
                rcj1
                Labels
                area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
                Milestone
                11.0.0
                Description
                @max-charlamb
                max-charlamb
                opened on Feb 10, 2025
                Support filter flags in DAC stack walk API. These filters aren't used in SOS so this is low priority.
                Flags:
                enumCLRDataSimpleFrameType{CLRDATA_SIMPFRAME_UNRECOGNIZED=0x1,CLRDATA_SIMPFRAME_MANAGED_METHOD=0x2,CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE=0x4,CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE=0x8};
                I initially expected this to be relatively simple, managed methods corresponding to frameless methods and Frames corresponding to runtime code. However, the logic in SFI changes with the FUNCTIONSONLY flag which is used if CLRDataSimpleFrameType = CLRDATA_SIMPFRAME_MANAGED_METHOD.
                This filters funclets but seems somewhat inconsistent.
                Example
                In the following example containing multiple exception handlers, the DAC filtering for only managed methods sometimes, but not always, skips these frames. This appears to be due to logic surrounding funclets and skipping to non-filtering funclets parents, but enumerating to filtering funclets parents.
                Full Stackwalk
                Highlighted lines are removed in the current DAC behavior.
                OS Thread Id: 0xd474 (0)
Child SP IP Call Site
**0000008FC11C6818 00007ff81f87f7e4 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
**0000008FC11C6818 00007ffe4a340092 [InlinedCallFrame: 0000008fc11c6818] Interop+Kernel32.g____PInvoke|43_0(IntPtr, Byte*, Int32, Int32*, IntPtr)**
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]
**0000008FC11C7160 00007ffea8ef51a9 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7160 00007ffea74e9e83 [InlinedCallFrame: 0000008fc11c7160]** **0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
**0000008FC11C8DA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11c8da0]** 0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
**0000008FC11C9EF0 00007ffea8ef5ea6 [InlinedCallFrame: 0000008fc11c9ef0]** **0000008FC11C9EF0 00007ffea74ea16a [InlinedCallFrame: 0000008fc11c9ef0]** 0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
**0000008FC11CBCA0 00007ffea8ffea33 [SoftwareExceptionFrame: 0000008fc11cbca0]** 0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC988 00007ffe4a3406f2 [InlinedCallFrame: 0000008fc11cc988]** **0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
**0000008FC11CD350 00007ffea8ffea33 [InlinedCallFrame: 0000008fc11cd350]** **0000008FC11CD350 00007ffea7523612 [InlinedCallFrame: 0000008fc11cd350]** 0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25

                Managed Only DAC Behavior
                OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

                Managed Only Naive cDAC Implementation
                Highlighted frames are not present in the DAC behavior. With a little more information, it should be trivial to filter the ILStub, but the logic around sometimes filtering ExceptionHandling logic is more complex.
                OS Thread Id: 0xd474 (0)
Child SP IP Call Site
0000008FC11C67E0 00007ffe4a340092 Interop+Kernel32.ReadFile(IntPtr, Byte*, Int32, Int32 ByRef, IntPtr) [C:\Users\maxcharlamb\source\reposA\runtime\artifacts\obj\System.Console\Release\net10.0-windows\Microsoft.Interop.LibraryImportGenerator\Microsoft.Interop.LibraryImportGenerator\LibraryImports.g.cs @ 412]
0000008FC11C68C0 00007ffe4a33ff27 System.ConsolePal+WindowsConsoleStream.ReadFileNative(IntPtr, System.Span`1, Boolean, Int32 ByRef, Boolean) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1223]
0000008FC11C6920 00007ffe4a33fe3b System.ConsolePal+WindowsConsoleStream.Read(System.Span`1) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\ConsolePal.Windows.cs @ 1181]
0000008FC11C6990 00007ffe4a33fd58 System.IO.ConsoleStream.Read(Byte[], Int32, Int32) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\ConsoleStream.cs @ 34]
0000008FC11C69E0 00007ffea758c606 System.IO.StreamReader.ReadBuffer() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 611]
0000008FC11C6A40 00007ffea758cb93 System.IO.StreamReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\IO\StreamReader.cs @ 800]
0000008FC11C6B00 00007ffe4a33fc74 System.IO.SyncTextReader.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\IO\SyncTextReader.cs @ 77]
0000008FC11C6B60 00007ffe4a33f2bc System.Console.ReadLine() [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Console\src\System\Console.cs @ 727]
0000008FC11C6BA0 00007ffe4a33df58 NibbleMapReplacement.C1.Block() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 160]
**0000008FC11C6C20 00007ffe4a340aeb NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 50]**
**0000008FC11C7100 00007ffea74e9e83 System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 948]**
**0000008FC11C7240 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]**
0000008FC11C9970 00007ffe4a340ac2 NibbleMapReplacement.C1.M2() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 46]
0000008FC11C99C0 00007ffe4a340a22 NibbleMapReplacement.C1.F2(System.Exception) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 153]
0000008FC11C9A00 00007ffe4a340974 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 72]
0000008FC11C9EB0 00007ffea74ea16a System.Runtime.EH.FindFirstPassHandler(System.Object, UInt32, System.Runtime.StackFrameIterator ByRef, UInt32 ByRef, Byte* ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 1092]
0000008FC11CA000 00007ffea74e9c4a System.Runtime.EH.DispatchEx(System.Runtime.StackFrameIterator ByRef, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 807]
0000008FC11CA140 00007ffea74e97f9 System.Runtime.EH.RhThrowEx(System.Object, ExInfo ByRef) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs @ 665]
0000008FC11CC870 00007ffe4a340913 NibbleMapReplacement.C1.M4() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 70]
0000008FC11CC8F0 00007ffe4a34084d NibbleMapReplacement.C1.U1(IntPtr, Int32) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 138]
**0000008FC11CC960 00007ffe4a3406f2 ILStubClass.IL_STUB_PInvoke(IntPtr, Int32)**
0000008FC11CCA40 00007ffe4a340612 NibbleMapReplacement.C1.M5() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 82]
0000008FC11CD300 00007ffea7523612 System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(System.Object, IntPtr*) [C:\Users\maxcharlamb\source\reposA\runtime\src\coreclr\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.CoreCLR.cs @ 36]
0000008FC11CD400 00007ffea7523724 System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(System.Object, System.Reflection.BindingFlags) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBaseInvoker.cs @ 57]
0000008FC11CD450 00007ffea7534c6c System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\RuntimeMethodInfo.cs @ 126]
0000008FC11CD4C0 00007ffea7522f33 System.Reflection.MethodBase.Invoke(System.Object, System.Object[]) [C:\Users\maxcharlamb\source\reposA\runtime\src\libraries\System.Private.CoreLib\src\System\Reflection\MethodBase.cs @ 56]
0000008FC11CD500 00007ffe4a340570 NibbleMapReplacement.C1.M6() [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 89]
0000008FC11CD560 00007ffe4a33de35 NibbleMapReplacement.Program.Main(System.String[]) [C:\Users\maxcharlamb\source\repos\NibbleMapReplacement\Program.cs @ 25]

                What is going on
                Not showing "logically" unwound call frames due to exception handling. This occurs in the second pass of EH.
                ExceptionTracker::FindParentStackFrameForStackWalk
                ExceptionTracker::IsUnwoundToTargetParentFrame
                ExceptionTracker::IsInStackRegionUnwoundByCurrentException
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                area-Diagnostics-coreclrenhancementProduct code improvement that does NOT require public API changes/additions
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